Fan clutch replacer anyone?

My old fan clutch has given out and I refuse to pay a mechanic $300 to replace it. After searching on ebay I found a fan clutch elimantor for only $75. I did my research and it seems that is designed to replace the expensive Toyota fan clutch using the original equipment with NO MODIFICATIONS. The e-bay seller told me it is applicable for all 22R motors.

I just placed my order and want to know has anyone had any prior experience with this? Looking to install over the next week or something so any install tips helps.